Lights come on while driving

I bought a 2005 RX330 a couple months ago. It now has 48,500 miles. The following happened 3 times while driving:

The ABS, Brake, and VSC lights come on solid and the Low Tire Pressure light blinks. Things go back to normal after I turn the engine off and start it again.

Dealer wants to see it first before they do anything about it. Problem is that every time it happened the dealer was closed. I live about an hour away and I’m not even sure I want to drive for one hour while these lights are on.

Reading some postings it seems like this was a known issue with the 2004 models (brake light switch). Has anyone seen this problem with a 2005 model?

Thanks,

This ad is not displayed to registered members.Register your free account today and become a member on Club Lexus!

my '06 RX330 has the identical problem. First time to the dealer, they could not get any codes. Later in the day, the lites came on again, they took a look and pointed at a bald spot on the front right tire, and said "that's your problem!". I put four fresh tires on it, and the lites still come on perhaps once per day. As the dealer that's been working the problem is 45 minutes away, I'll need to find a time to drive it in while the lites are on again. thanks for your info re recent postings, I'll look that up...

I bought a 2005 RX330 a couple months ago. It now has 48,500 miles. The following happened 3 times while driving:

The ABS, Brake, and VSC lights come on solid and the Low Tire Pressure light blinks. Things go back to normal after I turn the engine off and start it again.

Dealer wants to see it first before they do anything about it. Problem is that every time it happened the dealer was closed. I live about an hour away and Iím not even sure I want to drive for one hour while these lights are on.

Reading some postings it seems like this was a known issue with the 2004 models (brake light switch). Has anyone seen this problem with a 2005 model?

Thanks,

I think it might have something to do with traction control. Because when I got mine stuck in a snow bank the same thing happened as the back wheel kept spinning. One the tow got it off the mound and I drove it for a while it went away. Have you tried resetting your tire pressure?

I'm guessing something is causing the unit to trip and its over heating which why I believe the unit malfunction with the indicator lights and hence it sporadic.

I took the care to the dealer today (8 days after the last time the lights showed up). They found a code in the computer. It was switch code C1249 which was the brake light switch. Same problem as it was in the 2004 model. The dealer replaced the switch and hopefully I won't see these lights again.

I took the care to the dealer today (8 days after the last time the lights showed up). They found a code in the computer. It was switch code C1249 which was the brake light switch. Same problem as it was in the 2004 model. The dealer replaced the switch and hopefully I won't see these lights again.

I had the same symptoms and the same diagnostic result from the ECU... code C1249 on my '06 RX330. The dealer replaced the stop switch assembly today under warranty, and no sign of the lights again as of yet.

For a couple weeks, my Check VSC, the Alert/Warning light (Red Triangle with Exclamation Point), ABS, and Brakes warning lights all would come on when starting my car up intermittently. If I turned my car immediately off and restarted, no lights would come on. Now these lights come on every time at start up.

I had the trouble codes scanned for my '06 IS250 AWD and it spit back two code: C1249 and C1223. C1249 is an open circuit in the stop light switch and C1223 is a ABS control fault error.

After reading several threads I had my buddy install a new stop light switch and reset the computer and no lights have come back on. I've started multiple times and have drove about 50 miles now and the lights have no returned! So if you get a c1249 and c1223 trouble code error on your Lexus, this is probably the solution. The only rip off is that I had to get the part from Lexus because I didn't want to wait to have it shipped from partsgeek.com (http://tinyurl.com/34len8a) and the $40 part became $83 through Lexus. I'm sure they probably would have charged $50 to diagnosis the issue and another $150 for labor...I'm pretty sure I came out way ahead in this situation. Hope this helps some you out there!

Had the same problem on my 330/06 took to dealer today and they replaced Brake Lamp Switch
P/N 84340-47020 $75.00 Labor $68.00. Gave me a 2010 350 loaner, what a ride and difference. Wish it was a Christmas present!!!!!!!

Hi. I have just removed the brake switch, opened it, cleaned the contacts inside (very simple switch) and installed it back. It's doable and not complicated, but one has to take an uncomfortable position to remove it. Installing back it's a bit easier. It may also take time, because every move you do to remove the switch is slow (lack of space). I followed this steps:
1.removed the spring to get access to the sensor.
2.using a 14 mm wrench loosened the nut a bit and then removed the switch by rotating it (you need to remember the position of the nut).
3.unplugged the cable as soon as I could get access to it. You do not want to damage any contacts by rotating the switch too much with the cable plugged in it.
4.Opened the sensor by unbending the 4 aluminum contact connecting the plastic part with the metal part of the switch. Inside I found a sort of oxide on the contacts. Apparently the switch remained on (because of the oxide) when it was supposed to be off.
5.Reinstalled the switch.